Natural sources of energy can be renewable and non-renewable. Non-renewable energy sources cannot be

replaced. A non-renewable energy source would be ...

The use of fossil fuels around the world is steadily increasing. The fuel that has increased the most since

1950 is ...

On the graph, these colors represent:

*Yellow is "Natural Gas"

*Blue is "Oil"

*Green is "Coal"

The costs in dollars of using fossil fuels are what are considered to be ...

The environmental costs of air pollution can be reduced by improving ...

The costs of treating lakes, that have been damaged by acid rain, have to be paid for by every citizen. This

makes this type of cost ...

An alternative for thermal energy that is inexpensive, practical and renewable, and does not require

increased technological advances is wind power. This technology utilizes a windmill to generate electrical

power that can then be converted into thermal energy. Unfortunately this alternative is not practical where

there is no ...

Canadian scientists developed the Canada Deuterium-Uranium reactor to provide nuclear energy in parts of Canada and to sell to other countries. The major problem with this reactor is the ...

The ‘hybrid’ car was introduced to the general public in 2000. The ‘hybrid’ vehicle combined two types of

systems to power the vehicle. One was gasoline and the other was ...

The three main energy users are ...

An ENERGUIDE label is found on most household electrical appliances and tells the consumer how much electricity is

Thermal energy has the power to hurt us and destroy our possessions. All of the following practices are

dangerous and harmful EXCEPT ...

A dangerous by-product, from the use of fossil fuels (coal, natural gas and oil) enters the atmosphere when

industries burn this fuel.

A by-product can react with water in the air to form acid rain. The by-product is ...

An important tool that companies use to determine where energy is being wasted and ways to fix the

problem is an ...

Co-generation is a process in which two forms of energy are produced at the same time from one energy

source. The two forms of energy produced are usually ...